Function llama_sampler_init_top_k

pub unsafe extern "C" fn llama_sampler_init_top_k(
    k: i32,
) -> *mut llama_sampler

@details Top-K sampling described in academic paper “The Curious Case of Neural Text Degeneration” https://arxiv.org/abs/1904.09751 Setting k <= 0 makes this a noop